Bug in Global Items.. need help ASAP

I've recently been working on a theme which will be available in four colors; blue, green, lilac, and red.

With the first two, blue & green, I pretty much customized everything and for the first time I also customized the applications (Global Items>Applications). Both worked very well and had no issues whatsoever.

The exact same theme in lilac and red however, the fonts in Options (the wrench icon) are practically invisible, which is something I've never seen before. Being that I had never seen it and had also never colored the applications section before I assumed it was the reason and reset it to default. This fixed the issue, but I'm not quite sure why exactly it happened to begin with since this bug did not occur in the blue or green versions.

I played around with the lilac version for quite sometime today and couldn't get any shade of purple to work with the applications section. I also know its not the theme itself because if I try to use a shade of blue or green, it worked fine.

So does anyone happen to know why it is that only some colors cause this bug while others do not? And how do I determine which colors can be used without this bug affecting the options screen?

Any ideas and/or suggestions on this would be greatly appreciated as I was hoping to get this theme submitted to app world this coming week.